학술논문
A Current-Mode Discrete-Time Analog Computer for Solving Maxwell's Equations in 2D
Document Type
Conference
Source
2023 IEEE International Symposium on Circuits and Systems (ISCAS) Circuits and Systems (ISCAS), 2023 IEEE International Symposium on. :1-5 May, 2023
Subject
Language
ISSN
2158-1525
Abstract
This paper describes an analog CMOS IC for fast and fully-parallel finite-difference time-domain (FDTD) simulations of 2D electromagnetic (EM) problems. The chip uses discrete-time switched-current (SI) networks to model Maxwell's equations in 2D while minimizing the effects of device mismatch on solver accuracy. A prototype design in 180 nm technology implements a $16\times 16$ solver grid within an active area of 44.5 mm 2 while consuming 345 mW at a clock frequency of 20 MHz.